Augustus h



(No Model.)

A. ILJONES.

EXTENSION L'AMBPIXTURE. No. 271,334. Patented Jan'.30,1883`.

4 'm I 'WRI i @IHN "un VV Y 6b l UNITED STATES PATENT OFFICE. f

AUGUSTUS n. JONES, OE MEEIDEN, CONNECTICUT, AsSIeNon TO THE CHARLESPARKER COMPANY, OE SAME PLACE..A

EXTENSION LAM P-FIXTURE.

SPECIFICATION forming part of Letters Patent No. 271,334, dated January30, 1853.

Application filed December 152, 1882. (No model.)

To all whom fit may concern:

Beit known that I, AUGUSTUS H. JONES, a citizen of the United States,residing at Meriden, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inExtension Lamp-Fix'- tures, and l do hereby declare the following to hea full, clear, and-exact description of the invention, such as willenable others skilled Vin the art to which itappertains to make and usethe same, reference being had to the accompanying drawings, and toletters oriigures of reference marked thereon, which form a part of thisspecification.

This invention relates to devices for attaching pulleys andpulley-arbors to the suspend ing brackets or hangers ot'extension-lamps. Herctofore the hearing-posts for said arbors have beendrilled to receive the same, and the arbor ends protruding through theholes thus made have been hammered to head them, and thus preventdetachment. This method is tedious and expensive, and it involves theuse of malleable metal for the arbors, whereas the utmost hardness isdesirable. I avoid these disadvantages by setting the ends of thepulley-arbors' into open recesses in the tops ofthe bearing-posts 4andsecuring them there by a cross-bar, which is clamped upon the tops ofsaid posts and provided with depending lips or tlanges, which preventthe endwise motion ot' said arbors.

In theaccompanying drawings, Figure l represents a side view of a pulleyhanger or bracket provided with devices embodying my inven tion. Fig. 2represents a detail view ot' the cross-bar, and Fig. -represents atransverse section through one ot' the pulleys and' the proximatedevices.

A designates the hanger, which consists ot' a metallic frame provided onopposite sides,

near its top, with bearing-posts a a, arranged in pairs and recessed ontop to receive in each pair the arbor b ot' one of the pulleys B, usedfor the chains whereby the lamp and weight are suspended.

(J designates a cross-bar, which is bil'urcated at each end, so as toleave space for said pulleys and the chains passingoverthem, althoughwith anges or lips C', which prevent the endwise motion ot' the saidarbors by extending down on the outside of said posts and oppou site,respectively, to the ends of said arbors. This cross-bar has a centralopening., and there is a central opening also in the bottom of theThrough these openings, Aand hanger A. through a corresponding openingin the lower end of a suspending-loop, D, extends a rod or stern, E,.which is provided with al shoulder,

E', below said hanger, and with screw-threads c above the lower bar ofsaid loop. A nut, F, turned home on said screw-threads, clamps saidloop, cross-bar, and bracket firmly together, and thereby closes thebearings of the pulley-arbors. By turning oftl said nut all theaforesaid parts are readily separated.

The hardest material attainable may be used for the pulley-arbors, .asno 'modilication of their form is required in putting the partstogether, and they will then be t'ar better suited to withstand theconsiderablel strain of the lamp and weight than if made ot' metal thatcan be headed like a rivet. There is also no need to drill any of thedevices used. The arbors do not become permanent portions of the hanger,as after riveting, but may easily be separated therefrom. y Y

The same method of attachment may be applied to the arbors of pulleysused on shaderings or lamp-supports, when such are used.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent., is

l. lu an extension lamp-fixture, a pulley provided with a detachablearbor, in combina tion with a bracket or hanger having bearings for saidarbor, and devices which hold said arbor to said bearings and' preventits separation from said pulley.

2.- A pulley-hanger provided with bearingposts which are recessed ontop, in combination with pulley-arbors which set into said recesses, anda bar extending across said hanger, which is clamped to the tops ot saidbearingposts.

VSo

with :n hanger having bearings for said arbor, as sei; forth. 1o and a.bar clamped against said bearings, said In testimony whereofI affix mysignature in bar being provided with lips Whichextend oppresenee of tivoWitnesses. j; posite the ends of said Arbor, and thus prevent AUGUSTUSH. JONES.

its endwise motion. Witnesses:

4. A bracket. A, suspending-loops D, cross- E. A. MERRIMAN, bnr C,pulleys B, and arbors b, allclzimped to- J ARED I. PARKER.

A pulley and its arbor, in combination gether by a bolt, E, and'nnt F,substantially

